diff options
Diffstat (limited to 'software/pong3/pong3.c')
| -rw-r--r-- | software/pong3/pong3.c | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/software/pong3/pong3.c b/software/pong3/pong3.c index 0e88ac8..39ee99c 100644 --- a/software/pong3/pong3.c +++ b/software/pong3/pong3.c @@ -3,10 +3,14 @@ #include <unistd.h> #include <stdlib.h> #include <string.h> +#include <stdint.h> #include "system.h" +#include "GPU.h" + #define msleep(msec) usleep(1000*msec); + static void gpu_write (unsigned int reg, unsigned int data) { @@ -16,27 +20,17 @@ gpu_write (unsigned int reg, unsigned int data) static void load_sprite (void) { + const uint16_t sprite[16]={ 0x00C0, 0x03E0, 0x0FF8, 0x1FFE, 0x3FC7, 0x3F83, 0x3933, 0x3987, 0x3D37, 0x3D37, 0x3D87, 0x3FFF, 0x1FFE, 0x07F8, 0x01E0, 0x00C0 }; + const unsigned int n=sizeof(sprite)/sizeof(uint16_t); + unsigned int i; + // RRR GGG BBB // set the sprite color 111 010 000 - orange - gpu_write (5, 0x01D0); + gpu_write (GPU_REG_SPRITE_COLOUR, 0x01D0); // squirt the bromium logo into the sprite - gpu_write (0x10, 0x00C0); - gpu_write (0x11, 0x03E0); - gpu_write (0x12, 0x0FF8); - gpu_write (0x13, 0x1FFE); - gpu_write (0x14, 0x3FC7); - gpu_write (0x15, 0x3F83); - gpu_write (0x16, 0x3933); - gpu_write (0x17, 0x3987); - gpu_write (0x18, 0x3D37); - gpu_write (0x19, 0x3D37); - gpu_write (0x1a, 0x3D87); - gpu_write (0x1b, 0x3FFF); - gpu_write (0x1c, 0x1FFE); - gpu_write (0x1d, 0x07F8); - gpu_write (0x1e, 0x01E0); - gpu_write (0x1f, 0x00C0); + for (i=0;i<n;++i) + gpu_write (GPU_REG_SPRITE_BASE+i,sprite[i]); } @@ -83,10 +77,10 @@ find_intersection (int x, int y, int xd, int yd, int t) x += xd; y += yd; - if (squish (&y, 0, 480)) + if (squish (&y, 0, GPU_HEIGHT)) yd = -yd; - if (squish (&x, 0, 640)) + if (squish (&x, 0, GPU_WIDTH)) xd = -xd; } @@ -118,7 +112,7 @@ main (void) yd = 1; dbat0 = find_intersection (x + xd, y + yd, xd, yd, 0); - dbat1 = find_intersection (x + xd, y + yd, xd, yd, 639); + dbat1 = find_intersection (x + xd, y + yd, xd, yd, GPU_WIDTH-1); while (!missed) { @@ -126,10 +120,10 @@ main (void) y += yd; - if (squish (&y, 0, 480)) + if (squish (&y, 0, GPU_HEIGHT)) yd = -yd; - if (squish (&x, 0, 640)) + if (squish (&x, 0, GPU_WIDTH)) { xd = (rand () % 3) + 1; if (x) @@ -140,13 +134,13 @@ main (void) if (x) { dbat0 = find_intersection (x + xd, y + yd, xd, yd, 0); - dbat1 = 480 / 2; + dbat1 = GPU_HEIGHT / 2; } else { - dbat0 = 480 / 2; + dbat0 = GPU_HEIGHT / 2; - dbat1 = find_intersection (x + xd, y + yd, xd, yd, 639); + dbat1 = find_intersection (x + xd, y + yd, xd, yd, GPU_WIDTH-1); } } @@ -154,10 +148,10 @@ main (void) move_bat (&bat1, dbat1); - gpu_write (1, x + 0x80); - gpu_write (2, y + 0x80); - gpu_write (3, bat0 + 0x80); - gpu_write (4, bat1 + 0x80); + gpu_write (1, x + GPU_OFFSET); + gpu_write (2, y + GPU_OFFSET); + gpu_write (3, bat0 + GPU_OFFSET); + gpu_write (4, bat1 + GPU_OFFSET); gpu_write (0, 0); |